Very cute! She likes him a lot so far. She's fascinated by whatever mechanics he's bound by, and if she wasn't quite so overwhelmed with EVERYTHING she'd want to sit down and play "how does shadow work" with him. OTOH, even if she doesn't remember it all, she's no stranger to magical creatures, so he doesn't seem that much weirder to her than all the humans do. There's a little bit of like "OH THANK GOODNESS I'M NOT THE ONLY ODD PONY OUT" in there too for another non-human on the team. Mostly, yeah, pretty straight forward protection tinged with curiosity and a bit of protectiveness because lol what drunken President.

SHADOW LIKES TWILIGHT SPARKLE A LOT. She is the first new member of Peridot since Lelouch, and Lelouch was when it established the PERIDOTS ALL BELONG TO PERIDOT REGARDLESS OF NEWNESS mentality, so it approached her from more of a direction of... "I will invest a bit of time in you despite new person, to see if this works out!" And this paid off, she was very nice to it and answered questions and let it piggyback on her shadow when it was drunk. Very strong positive first impression! It would be happy to ASK HER QUESTIONS FOREVER.

Do you think Peridot will be able to teach Twilight Sparkle to yandere.

Well, of all the Ponies, I think Twilight is the one best equipped to deal with badness, and also the least likely to pick up any crazy. It's why I wanted her in a game like this, to be a SANITY PONY in a possible sea of crazy. I imagine that she'll stay pretty steady and solidly of Good Sane Person alignment. Buuuuuut yes, I do think it is possible for Twilight to go down a less stable path, but I think it would take some pretty heavy circumstances to do it, and the best odds of it happening are before she has too many memories. She has a desire to fit in, especially while she's out of her element, so there could be some ~peer pressure~ working in there, or srs games, but even amnesia'd, she does have a pretty strong sense of self, so while possible, I think it's unlikely. I guess basically it's possible but circumstantial! UHM DID I ANSWER THE QUESTION?